Chetan Singh Sengar

About Chetan Singh Sengar

Senior Software Engineer @ Brightly (A Siemens Company)| Full Stack Java + Cloud…

Experience

1. Senior Software Engineer

   Siemens

   Oct 2024 — Present · Noida, IN

   Authentication & Authorization• Implementing secure authentication and fine-grained authorization using Auth0 and now working with FDS (Foundations Service), Siemens’ internal identity platform that replaced Auth0.• Led enterprise-wide SSO implementation across applications.• Managing OAuth2/OIDC, RBAC, token-based security, and machine-to-machine API protection.• Enforcing zero-trust access and secure API gateway practices.Microservices & API Development• Designing high-performance microservices using Quarkus (Java 17).• Building gRPC APIs for low-latency inter-service communication.• Applying Domain-Driven Design for scalable, modular architecture.• Implementing resilience patterns (retries, circuit breakers, observability).Integration & Event Processing• Developing Integration Engine using Apache Camel + Quarkus, integrating ERP and Service Essentials (SE).• Architecting event-driven systems using Apache Kafka (publish/consume/monitor).• Working with AWS SQS for asynchronous messaging.• Applying Enterprise Integration Patterns (EIP) for distributed workflows.Database & Infrastructure• Managing PostgreSQL and optimizing queries for high-throughput systems.• Maintaining schema versioning using Liquibase.• Ensuring reliable persistence for large-scale transactional systems.Cloud, Observability & Deployment• Deploying services on AWS EC2 and S3.• Working with Service Mesh for secure inter-service communication.• Implementing monitoring with Grafana dashboards.• Following cloud-native, CI/CD, and containerization best practices.Engineering Excellence• Enforcing SOLID and clean architecture principles.• Driving strong unit/integration test coverage.• Collaborating cross-functionally to deliver secure, scalable enterprise solutions.